Heating-furnace.



PATENTED NOV 21, 1905. G. P. TURNER.

HEATING FURNACE.

APPLIOATION FILED 001217, 1904.

2 SHEETS-SHEET 1.

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I 1 I I I IIL E o W UE W H I YH H I I W JU L WITNESSES. 2

No. 805,041. PATENTED NOV. 21, 1905.

G. P. TURNER. HEATING FURNACE.

APPLICATION FILED OUT. 17, 1904.

- 2 SHEETSSHBET Z FIG, 2

, CHARLES P. TURNER, OF MOKEESPORT, PENNSYLVANIA.

HEATING-FURNACE.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed October 1'7, 1904. Serial No. 228,784:-

To all whom it may concern:

Be it known that 1, CHARLES P. TURNER, a resident of McKeesport, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Heating-Furnaces; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to heating-furnaces for heating blooms, slabs, piles, &c., by introducing them into the furnace at the cold end and delivering them heated at the hot end or end nearest the combustion-chamber.

One of the objects of my invention is to provide a simple form of apparatus for lifting the blooms, slabs, or piles from the floor of the furnace and advancing the same by a step-bystep motion to the discharge end of the furnace.

A further object of my invention is to provide for the removal of any unevenness in the heat of the blooms or piles occasioned by their proximity to the lifting device by means of which the piles are lifted from the floor and carried forward by a step-by-step motion.

To these ends my invention comprises the novel features hereinafter set forth and claimed.

To enable others skilled in the art to make and use my invention, I will describe the same more fully, referring to the accompanying drawings, in which Figure l is a longitudinal section of my improved furnace in elevation. Fig. 2 is a plan view in section. Fig. 3 is a cross-section, and Fig. 4 is a detail view of one of the columns.

Like numerals indicate likeparts in each of the views.

The furnace 2 is composed of the foundation-walls 3, the floor 4., the sides 5, and the top 6, all united and bound together in any suitable manner to form a strong substantial structure, the plates, tie-bars, &c. ,used in such construction not being designated in detail.

At the rear or discharge end of the furnace is the fire-chamber7, whichis connected with the heating-chamber by the opening 8. In addition to the main heating-chamber 9 of the furnace is the supplemental heating-chamber 10, which is adapted to receive the blooms, slabs, or piles as they are carried through and discharged from the main heating-chamber 9. Access is had to this supplemental chamber 10 by means of the door 11. The fire-box? is provided with the door 12. The supplemental heating-chamber 10 is provided with the cinder-notch 13 for the removal of the cinder. The main heating-chamber 9 has the doors 14 arranged at suitable intervals in the side walls for inspecting the blooms or piles as they pass through said heating-chamber. At the front end of the furnace is the stack 15.

Below the furnace floor is the movable frame 16, which comprises the I-beams 17, supported by the cross-beams 18, said I-beams being permitted to rise in a vertical direction, but being held against longitudinal movement by the vertical guides 19. Mounted on the movable frame 16 are the columns or posts 20,which pass up through openings 22 formed in the furnace-floor 4.. These columns are preferably made of hollow castings having the diaphragms 23 formed therein, so as to form a water passage within said column. Water-pipes 24 are connected up with the columns 20, so that the water is admitted on one side of the diaphragm 23 and passing up within the column passes over the top of said diaphragm and out the pipe at the lower end thereof, which is connected with the next column of the series, so that water introduced into one column is carried to the succeeding one, and so on throughout the series. Supported upon the columns 20 are the pipes or skids 25,which form a support for the blooms or piles when they are lifted by the upward movement of the frame from the floor of the furnace. These pipes 25 are closed at their rear ends, and within the said pipes are the pipes 26, by means of which water is introduced into the pipes 25, said water being supplied by the pipe 27 Connected to the I-beams 17 are the links 28, which are connected to the bell-cranks 29, mounted on the supports 30. These bellcranks 29 are connected by the rods 31 to the piston 32 of the cylinder 33. A rod 34 connects the plunger 32 with the lever 35, said rod having a sliding connection with said plunger, the lower end of said lever 35 being connected to the plunger 36 in the cylinder 37. The upper end of the lever 35 is connected to the link 38, connected to the slide 39, mounted in the guide 4:0. This slide 39 is connected to the pipes or skids 25.

l/Vhen my improved furnace is in operation, the billets, blooms, or piles are fed into the front end of the furnace and supported upon the raised portions A2 of the bottom 4, each bloom or pile beingseparated from the succeeding one by a suitable space. Steam, com pressed air, or other motive power is admitted i to the cylinder 33, whereupon the plunger 32 is moved and, drawing upon the rods 31 through the bell-crank 29 and links 28, an upward-movement is imparted to the frame 16. As said frame is prevented from longitudinal movement by the guides 19, an upward movement is imparted to the columns 23, which lift the pipes or skids 25. These pipes or skids being elevated also lift the billets or piles from the floor of the furnace. By admitting steam to the proper side of the plunger 36 movement is imparted to the levers 35,

which advance the skids 25, so that the billetsor piles supported thereon are carried forward a certain distance. The steam is allowed to escape from the cylinder, whereupon the pressure on the plunger 32 is removed and the skids 25 are lowered by the weight of the frame, so that the billets or piles carried thereby are again deposited upon the floor of the furnace. The skids 25 are withdrawn by the levers 35 to their normal position through the action of the rod 32 pulling on the levers 35, the steam being allowed to escape from ,Qylinder 37. The above operation is continiieduntil the blooms or piles have been advanced by a step-by-step motion to the rear end of the furnace, where they are discharged into the supplemental heating-chamber 10.-

It is apparent that in some cases there may be an unevenness in the heat of these blooms or piles, due to their contact with the skids 25, which have a cooling fluid flowing through them and tend to cool that portion of the metal in contact therewith. By depositing the blooms or piles in the supplemental heating-chamber 10 and leaving them there a sufficient length of time this unevenness of temperature is removed and the bloom or pile uniformly heated throughout. In the heating of iron piles especially it may be necessary to turn the pile after it has been discharged from the skids, and this may be done in the supplemental heating-chamber.

What I claim is 1. In a heating-furnace, the combination of a stationary floor having openings at intervals therein, a vertically-movable frame working in said openings, and an independent longitudinally-movable support carried by said frame.

2. In a heating-furnace, the combination of a stationary floor having openings at intervals therein, a vertically-movable frame engaging said openings, mechanism for raising and lowering said frame, an independent longitudinally-movable support carried by said frame, and mechanism for moving said support back and forth.

3. In a heating-chamber, the combination of a stationary floor having openings at intervals therein, a vertically-movable frame, columns on said frame entering said openings, mechanism for raising and lowering said columns,

an independent longitudinally-movable sup- 5 nected to said links, mechanism for operating said bell-cranks, an independent longitudinally-movable support carried by said frame, and connections between said mechanism and said support to withdraw same.

6. In a heating-furnace, the combination of 5 a floor having openings therein, a verticallymovable frame engaging said openings, a cylinder, a plunger, connections between said plunger and said frame to raise andlower same, an independent longitudinally-movable support carried by said frame, and connections between said plunger and said support to withdraw same.

7. In a heating-furnace, the combination of a floor having openings therein, a verticallymovable frame engaging said openings, a cylinder, a plunger, connections between said plunger and said frame to raise same, an independent longitudinally-movable support carried by said frame, a second cylinder, a second plunger, and connections between said second plunger and said support to advance the same.

8. In a heating-furnace, the combination of a floor having openings therein, a verticallymovable frame engaging said openings-a cylinder, a plunger, connections between said plunger and said frame to raise same, a rod having a sliding connection with said plunger, a longitudinally-movable support carried by said frame, and connections between said support and said rod to move said support.

In testimony whereof I, the said CHARLES P. TURNER, have hereunto set my hand.

CHARLES P. TURNER.

Witnesses:

ROBERT C. TOTTEN, G. O. RAYMOND. 

